This LCD monitor includes an interface board, a power
board and a function key board.
The interface board controls the TFT panel control logic,
brightness control logic, and DC-DC conversion to supply
the appropriate power to the whole board and LCD panel.
The LVDS signals transmit video data to LCD Module to
drive the LCD display circuit.
The power board will provide the DC power to the interface
board, LCD panel and inverter board.
The function key board is used for OSD control, monitor
power ON/OFF and the LED indicator for power status.
This monitor meets Energy Efficiency grade 2 of China.
1.2 General Requirements:
1.2.1 Test Condition:
Normal test condition is that brightness level set at
Max. and contrast level set default. Test pattern is full
white pattern. The warm up time is more than 30
minutes. Ambient light should be less than 1 Lux.
1.2.2 Test Equipment:
The reference signal source is a calibrated Chroma
2326 or Quantum 801GD video generator. The use of
compatible generators during qualification and
production is acceptable.
Luminance meter is Minolta CA210, TOPCON BM7 or
compatible equipment.
1.3 Electrical:
This section describes the electrical requirement of the
monitor. Below is the block diagram.
This model combine with three platforms. See below
explanation.
1. Scaler IC: RTD2482D used in VGA, DVI and HDMI port.
Using simply word to define it.(1A1D1H)
2. Scaler IC: RTD2281 used in VGA and DVI port. Using simply
word to define it.(1A1D)
3. Scaler IC: RTD2280L used in VGA port. Using simply word to
define it.(1A)
1.1 Scope:
This document defines the design and performance
requirements for the 21.5” wide flat panel monitor. The
display elements shall be a 21.5” inch diagonal, UXGA
(1920 x1080) resolution TFT-LCD display .Video input
signals include D-sub and digital DVI-D , HDMI and
DP(DisplayPort) depends on different model. Power saving
function complies with the VESA DPMS (Display Power
Management Standard).
General display parameters:
1. Product Specification
LCD Flat Panel
Interface Board
Flat Panel Controller,DDC
Power Board
AC to DC Adapter
DC to AC Inverter
Audio
AMP
(Option)
AC-IN
1W*2
Speaker
(Option)
Audio Source
Host Computer
Function Key
Board
CCFL
Panel data & control. DC power
Speaker
line input
DC 5V
Audio line input
Video Signal input& DDC
Function key input
Display Area
21.5” diagonal
476.64mm(H)x268.11mm(V)
Resolution
1920 x 1080 pixels
Display Color Number
16.7M colors(6bit Hi FRC)
Display Type
a-Si TFT active-matrix
Contrast Ratio
1000 : 1 typ.
Brightness
250cd/m2 typ.
Response Time
(Ton + Toff) 5 ms typ.
Pixel Pitch
0.248mm(H) x 0.248mm(W)
Vertical Viewing
160 degrees typ, CR>10
Horizontal Viewing
170 degrees typ, CR>10
SPEC
H 31kHz ~ 82kHz
V 56Hz ~ 75Hz
Max Pixel clock
210MHz
Video input
0.7Vp-p
RGB Input Impedance
75
Ù
Sync Input Signal
Separate SYNC, Composite Sync
Sync Input Impedance
2.4K
Ù(1A1D1H), 50Ù(1A1D/1A)
H 31kHz ~82kHz
V 56Hz ~ 75Hz
Max Pixel clock
165MHz
Input Level
150mV<=Vp-p<=1560mV
Input Impedance
Input Impedance 100
Ù
per pair
AC power
AC 100V ~ AC 240V
±
10% 50/60Hz,
3 pin AC power cord
Input connectors
D-SUB 15pin, DVI-D 24pin, HDMI
19pin
Audio Jack (OPTIONAL) Audio input 3.5
Ö
AC IN 100~240V
Normal Operation
Power Saving
< 1W
Power Off
< 1W (90VAC~264VAC)
User’s Control
Front Panel Buttons
Right, Left, MENU, AUTO,E,Power
Preset Timing
13
User’s Timing
9
VESA DDC2B
VESA DPMS
H
±
1kHz, V
±
1 Hz
Pre-Defined Timing
Power Saving
Input Signal Counter tolerance
Plug and Play
Connectors
Power Consumption
30W Max(with audio)
35%typical, 65%min
Dimming control range
(max-min/max) x100%
ITEM
Frequency Ranges
Analog Signal Input
(VGA)
Digital Signal Input
(DVI&HDMI)
Frequency Ranges
2
ACER A211H/A221HQ
